Cautions:1. Please promptly charge the reading lamp when the source is used up. Otherwise the usage life will be shortened.2. Please do not use it when charging in order to avoid burning out the internal components of the power source.3.Please use the specified charger.4. The light of LED lamps is ultra strong, do not shine eyes directly(child should be guide under adults).5. Please charge it every three months when it is not need to use.